GRAFFSTEIN, Jerzy. Functioning of an air anti-collision system during the test flight. Aviation, [S. l.], v. 18, n. 1, p. 44–51, 2014. DOI: 10.3846/16487788.2014.865945. Disponível em: https://journals.vilniustech.lt/index.php/Aviation/article/view/3015. Acesso em: 11 may. 2025.